MarinHealth Primary Care | A UCSF Health Clinic
Primary Care • Sonoma, CA • Since 1952 • Multiple locations in North Bay; Sonoma location listed locations
About
MarinHealth, a UCSF Health clinic network in the North Bay, provides primary and specialty care across Marin, Sonoma, and Napa counties. Key points: - MarinHealth Medical Network operates 125+ providers across 25 locations. - Joined with UCSF Health through a strategic alliance; many practices are part of UCSF Health. - Network offices span Marin, Sonoma, and Napa Counties, offering broad access to primary care and specialty services. - Alumni and talent data indicate significant collaboration with UCSF Health and other major health systems for staff and providers. If you’re specifically seeking MarinHealth Primary Care within the UCSF Health clinic ecosystem in Sonoma, this page confirms that MarinHealth operates primary care networks aligned with UCSF Health, with multiple locations in the North Bay region. For precise clinic locations in Sonoma and appointment details, you may want to visit the MarinHealth site’sLocations section or contact a local MarinHealth/UCFS Health primary care office.
Clinic Type
Primary Care
Address
MarinHealth Primary Care – Sonoma
Phone
415-514-6000
—
Opening Hours
Not published — contact the clinic to confirm hours.
Telehealth
Available for remote visits via smartphone, tablet, or computer
Emergency Care
9-1-1 for life-threatening emergencies; on-call physician after hours
Services Offered
Technology & Equipment
Team
Insurance & Payment
—
Languages Spoken
FAQs
What is a PCP?
The primary doctor who coordinates your overall health and care.
What Patients Say
Overall sentiment across review platforms: positive
- Healthgrades: 4.5 out of 5 stars (51 reviews (for Dr. Brian Sebastian, a provider at the location))
Patients praise
- Highly rated individual physicians known for being thorough, compassionate, and good listeners
- Efficient care and accessibility for patients, including Medicare recipients
- Appreciation for the clinic's connection to the broader UCSF Health system
- Professional and knowledgeable medical staff
Common complaints
- Isolated reports of poor office staff communication and responsiveness
- Some patient concerns regarding billing and appointment scheduling delays
- Occasional dissatisfaction with specific provider availability and responsiveness
"Dr Sebastian is both personal and professional. He thinks and discusses."
— Healthgrades reviewer regarding Dr. Brian Sebastian"Dr. Sebastian has been my primary care physician for about 10 years... I trust him."
— Healthgrades reviewer regarding Dr. Brian Sebastian"Absolutely disastrous client service. My provider left and I was rescheduled for 6 months later."
— Reviewer on Yelp (referenced via MapQuest)Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Dr. Denise Yun, MD, Internist | Larkspur, CA | WebMD — Nov 4, 2025
- Dr. Mary Fabi, MD - Internist in Greenbrae, CA | Healthgrades — Aug 12, 2025
- UCSF Health Urgent Care Centers Expand Options | Mirage News — Dec 8, 2025
- Dr. Alyssa Lo, MD - Obstetrician Gynecologist in Greenbrae, CA | Healthgrades — Sep 12, 2025
- MarinHealth Launches the Haynes Heart & Vascular Institute, Marking a New Era in Cardiovascular Care for the North Bay — Jun 30, 2026
Information sourced from the clinic's website as of July 10, 2026.
More primary care clinics in Sonoma
Sonoma Valley Community Health Center (SVCHC) is a nonprofit healthcare provider based in Sonoma, California. Founded in 1992, SVCHC operates in the Hospitals and Health Care sector and employs about 21 people. The organization generates roughly $13.5 million in annual revenue and lists its headquarters at 19270 Sonoma Hwy, Sonoma, CA 95476. SVCHC offers services through four offices across the United States (all in Sonoma, CA area as per address data). Key contact options include emails at community@svchc.org and multiple phone numbers (e.g., 707-939-6070). It is also known by the alias Sonoma Valley Community Health Center and maintains a LinkedIn presence.
Comparing your options?
See other primary care clinics in Sonoma, or search the full directory by insurance, ratings, and more.